Madison County, Iowa Population 2021

Madison County, Iowa's estimated population is 16,602 with a growth rate of 0.80% in the past year according to the most recent United States census data. Madison County, Iowa is the 47th largest county in Iowa. The 2010 Population was 15,739 and has seen a growth of 5.48% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202116,6021320.80%
202016,4701320.81%
201916,3381320.81%
201816,2062061.29%
201716,0002041.29%
201615,796760.48%
201515,7201040.67%
201415,6161330.86%
201315,483-158-1.01%
201215,641-99-0.63%
201115,74010.01%
201015,7393,25626.08%
199012,483-114-0.90%
198012,5971,0398.99%
197011,558-737-5.99%
196012,295-836-6.37%
195013,131-1,394-9.60%
194014,5251941.35%
193014,331-689-4.59%
192015,020-601-3.85%
191015,621-2,089-11.80%
190017,7101,73310.85%
189015,977-1,247-7.24%
188017,2243,34024.06%
187013,8846,54589.18%
18607,3396,160522.48%
18501,1790.00%
2021 Growth Rate
0.80%
County Website
State
Founded
1846
County Seat
2010 Population
15,739
Growth Since 2010
5.48%
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Madison County, Iowa Population Growth

Population by Race

Race Population Percentage
White15,53697.03%
Asian2261.41%
Two or More Races1721.07%
Black or African American380.24%
Native Hawaiian and Other Pacific Islander240.15%
American Indian and Alaska Native110.07%
Some Other Race50.03%
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Madison County, Iowa Population by Race

Madison County, Iowa Population Pyramid $2021

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Madison County, Iowa Median Age

40.7


Total

40.2


Male

41.7


Female

Madison County, Iowa Adults

There are 12,049 adults, (2,735 of whom are seniors) in Madison County, Iowa.

Madison County, Iowa Age Dependency

71.9

Age Dependency Ratio

29.4

Old Age Dependency Ratio

42.5

Child Dependency Ratio

Madison County, Iowa Sex Ratio

Female

7,911

49.41%

Male

8,101

50.59%

Madison County, Iowa Population by Age

Madison County, Iowa Renter vs Owner Occupied by Household Type

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Madison County, Iowa Household Types

Type Owner Renter
Married87.3%12.7%
All78.4%21.6%
Male74.8%25.2%
Non Family62.5%37.5%
Female59.7%40.3%

78.4%

Rate of Home Ownership

Madison County, Iowa Households and Families

Type Count Average Size Owned
All6,4622.4578.4
Married4,0282.9687.3
Non Family1,7631.0662.5
Male3413.1374.8
Female3302.8659.7

2.9

Average Family Size

2.45

Average Household Size

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Madison County, Iowa Households by Type

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Education Attained Count Percentage
Less Than 9th Grade3022.75%
9th to 12th Grade3323.02%
High School Graduate4,01436.55%
Some College2,27720.73%
Associates Degree1,36612.44%
Bachelors Degree2,03718.55%
Graduate Degree6545.96%
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Madison County, Iowa Educational Attainment by Sex (over 25)

Madison County, Iowa Educational Attainment by Race

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Race Total High School Bachelors
White10,4899,9962,602
Hispanic26517243
Asian16113517
2+ Races524929
Black3020
Islander24
Native American101
Other Race1

The highest rate of high school graduation is among white people with a rate of 95.30%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 55.77%.

Madison County, Iowa Educational Attainment by Race

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Name Average Male Female
Overall$44,270$50,256$32,348
Less Than 9th Grade$30,833$34,762$22,111
High School Graduate$40,542$48,730$26,003
Some College$42,702$48,675$32,241
Bachelors Degree$54,737$61,860$49,100
Graduate Degree$69,000$76,908$49,732

$44,270

Average Earnings

$50,256

Average Male

$32,348

Average Female

Madison County, Iowa Earnings by Educational Attainment

Madison County, Iowa Language by Age

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Madison County, Iowa Language

96.84% of Madison County, Iowa residents speak only English, while 3.16% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.26% of the population.

Madison County, Iowa Language

Madison County, Iowa Poverty by Race

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Name Total In Poverty Poverty Rate
White15,0597294.84%
Hispanic3245316.36%
Asian2262511.06%
Islander2424100.00%
Native11981.82%
Black29413.79%
Other5480.00%

5.03%

Overall Poverty Rate

3.56%

Male Poverty Rate

6.55%

Female Poverty Rate

Poverty in Madison County, Iowa

The race most likely to be in poverty in Madison County, Iowa is Islander, with 100.00% below the poverty level.

The race least likely to be in poverty in Madison County, Iowa is White, with 4.84% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.55%. Among those working part-time, it was 5.84%, and for those that did not work, the poverty rate was 12.10%.

Madison County, Iowa Poverty

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Name Poverty
Less Than 9th Grade21.11%
High School5.05%
Some College4.58%
Bachelors or Greater1.76%

Madison County, Iowa Poverty Rate by Education

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Rate Poverty
Male Unemployed17.82%
Female Employed4.61%
Female Unemployed2.88%
Male Employed1.67%

Madison County, Iowa Poverty Rate by Employment Status and Sex

Madison County, Iowa Income by Household Type

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Name Median Mean
Households$66,316$87,530
Families$80,896$103,228
Married Families$85,060-
Non Families$30,644$42,942
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Income by Household Type

Madison County, Iowa Marital Status

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Marriage Rates

63.9%

Overall Marriage Rate

64.4%

Male Marriage Rate

63.5%

Female Marriage Rate

Madison County, Iowa Married by Age and Sex

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Madison County, Iowa Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Madison County, Iowa Marital Status by Race

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Madison County, Iowa Marital Status

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856

Number of Veterans

751

Male Veterans

105

Female Veterans

War Veterans
Vietnam420
Second Gulf War152
First Gulf War120
Korea89
World War II27

Madison County, Iowa Veterans by War

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Age Group Veterans
65 to 74290
75+229
35 to 54159
55 to 64108
18 to 3470

Madison County, Iowa Veterans by Age

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Madison County, Iowa Veterans by Race

Madison County, Iowa Veterans by Education

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5.31%

Veteran Poverty Rate

32.67%

Veteran Disability Rate

Madison County, Iowa Veterans by Education

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69.3%

Labor Force Participation

67.3%

Employment Rate

2.8%

Unemployment Rate

Madison County, Iowa Employment by Age

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Madison County, Iowa Employment by Race

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Madison County, Iowa Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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82.06%

Born in Madison County, Iowa

98.77%

Native Born

1.23%

Foreign Born

0.81%

Non Citizen

0.42%

Naturalized

Place of Birth

98.77% of Madison County, Iowa residents were born in the United States, with 82.06% having been born in Iowa. 0.81% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Madison County, Iowa Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources